I have a Prarie blaster and yes it is heavy. I have the TX500 remote. I can load 500 sounds on it, and create present sequences if i want.
I just plug it in and copy the foxpro or MP3 sound files onto the call, update the remote, and away I go.
It's a big call, and with a SLA battery can go all weekend on a single battery.. I have placed it next to other calls and turned it on, and always been able to easily drown out any other call.
It's often in the open grass that i will spot a coyote out a mile, and see it stop and turn towards my call after not hearing the other calls.
Can't call in what doesn't hear your call. I am not saying that volume is the key, nor am i saying to buy that model. It's just nice to be able to crank up the volume slowly to reach out and call more land.